WHvSetVirtualProcessorState

// WinHvPlatform.dll
#include <windows.h>

HRESULT WHvSetVirtualProcessorState(
    WHV_PARTITION_HANDLE Partition,
    DWORD VpIndex,
    WHV_VIRTUAL_PROCESSOR_STATE_TYPE StateType,
    const void* Buffer,
    DWORD BufferSizeInBytes
);

<DllImport("WinHvPlatform.dll", ExactSpelling:=True)>
Public Shared Function WHvSetVirtualProcessorState(
    Partition As IntPtr,   ' WHV_PARTITION_HANDLE
    VpIndex As UInteger,   ' DWORD
    StateType As Integer,   ' WHV_VIRTUAL_PROCESSOR_STATE_TYPE
    Buffer As IntPtr,   ' void*
    BufferSizeInBytes As UInteger   ' DWORD
) As Integer
End Function

' Partition : WHV_PARTITION_HANDLE
' VpIndex : DWORD
' StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE
' Buffer : void*
' BufferSizeInBytes : DWORD
Declare PtrSafe Function WHvSetVirtualProcessorState Lib "winhvplatform" ( _
    ByVal Partition As LongPtr, _
    ByVal VpIndex As Long, _
    ByVal StateType As Long, _
    ByVal Buffer As LongPtr, _
    ByVal BufferSizeInBytes As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WHvSetVirtualProcessorState = ctypes.windll.winhvplatform.WHvSetVirtualProcessorState
WHvSetVirtualProcessorState.restype = ctypes.c_int
WHvSetVirtualProcessorState.argtypes = [
    ctypes.c_ssize_t,  # Partition : WHV_PARTITION_HANDLE
    wintypes.DWORD,  # VpIndex : DWORD
    ctypes.c_int,  # StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE
    ctypes.POINTER(None),  # Buffer : void*
    wintypes.DWORD,  # BufferSizeInBytes : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinHvPlatform.dll')
WHvSetVirtualProcessorState = Fiddle::Function.new(
  lib['WHvSetVirtualProcessorState'],
  [
    Fiddle::TYPE_INTPTR_T,  # Partition : WHV_PARTITION_HANDLE
    -Fiddle::TYPE_INT,  # VpIndex : DWORD
    Fiddle::TYPE_INT,  # StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE
    Fiddle::TYPE_VOIDP,  # Buffer : void*
    -Fiddle::TYPE_INT,  # BufferSizeInBytes : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "winhvplatform")]
extern "system" {
    fn WHvSetVirtualProcessorState(
        Partition: isize,  // WHV_PARTITION_HANDLE
        VpIndex: u32,  // DWORD
        StateType: i32,  // WHV_VIRTUAL_PROCESSOR_STATE_TYPE
        Buffer: *const (),  // void*
        BufferSizeInBytes: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WinHvPlatform.dll")]
public static extern int WHvSetVirtualProcessorState(IntPtr Partition, uint VpIndex, int StateType, IntPtr Buffer, uint BufferSizeInBytes);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinHvPlatform_WHvSetVirtualProcessorState' -Namespace Win32 -PassThru
# $api::WHvSetVirtualProcessorState(Partition, VpIndex, StateType, Buffer, BufferSizeInBytes)

#uselib "WinHvPlatform.dll"
#func global WHvSetVirtualProcessorState "WHvSetVirtualProcessorState" sptr, sptr, sptr, sptr, sptr
; WHvSetVirtualProcessorState Partition, VpIndex, StateType, Buffer, BufferSizeInBytes   ; 戻り値は stat
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; VpIndex : DWORD -> "sptr"
; StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> "sptr"
; Buffer : void* -> "sptr"
; BufferSizeInBytes : DWORD -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "WinHvPlatform.dll"
#cfunc global WHvSetVirtualProcessorState "WHvSetVirtualProcessorState" sptr, int, int, sptr, int
; res = WHvSetVirtualProcessorState(Partition, VpIndex, StateType, Buffer, BufferSizeInBytes)
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; VpIndex : DWORD -> "int"
; StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> "int"
; Buffer : void* -> "sptr"
; BufferSizeInBytes : DWORD -> "int"

; HRESULT WHvSetVirtualProcessorState(WHV_PARTITION_HANDLE Partition, DWORD VpIndex, WHV_VIRTUAL_PROCESSOR_STATE_TYPE StateType, void* Buffer, DWORD BufferSizeInBytes)
#uselib "WinHvPlatform.dll"
#cfunc global WHvSetVirtualProcessorState "WHvSetVirtualProcessorState" intptr, int, int, intptr, int
; res = WHvSetVirtualProcessorState(Partition, VpIndex, StateType, Buffer, BufferSizeInBytes)
; Partition : WHV_PARTITION_HANDLE -> "intptr"
; VpIndex : DWORD -> "int"
; StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> "int"
; Buffer : void* -> "intptr"
; BufferSizeInBytes : DWORD -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	winhvplatform = windows.NewLazySystemDLL("WinHvPlatform.dll")
	procWHvSetVirtualProcessorState = winhvplatform.NewProc("WHvSetVirtualProcessorState")
)

// Partition (WHV_PARTITION_HANDLE), VpIndex (DWORD), StateType (WHV_VIRTUAL_PROCESSOR_STATE_TYPE), Buffer (void*), BufferSizeInBytes (DWORD)
r1, _, err := procWHvSetVirtualProcessorState.Call(
	uintptr(Partition),
	uintptr(VpIndex),
	uintptr(StateType),
	uintptr(Buffer),
	uintptr(BufferSizeInBytes),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WHvSetVirtualProcessorState(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  VpIndex: DWORD;   // DWORD
  StateType: Integer;   // WHV_VIRTUAL_PROCESSOR_STATE_TYPE
  Buffer: Pointer;   // void*
  BufferSizeInBytes: DWORD   // DWORD
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvSetVirtualProcessorState';

result := DllCall("WinHvPlatform\WHvSetVirtualProcessorState"
    , "Ptr", Partition   ; WHV_PARTITION_HANDLE
    , "UInt", VpIndex   ; DWORD
    , "Int", StateType   ; WHV_VIRTUAL_PROCESSOR_STATE_TYPE
    , "Ptr", Buffer   ; void*
    , "UInt", BufferSizeInBytes   ; DWORD
    , "Int")   ; return: HRESULT

●WHvSetVirtualProcessorState(Partition, VpIndex, StateType, Buffer, BufferSizeInBytes) = DLL("WinHvPlatform.dll", "int WHvSetVirtualProcessorState(int, dword, int, void*, dword)")
# 呼び出し: WHvSetVirtualProcessorState(Partition, VpIndex, StateType, Buffer, BufferSizeInBytes)
# Partition : WHV_PARTITION_HANDLE -> "int"
# VpIndex : DWORD -> "dword"
# StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> "int"
# Buffer : void* -> "void*"
# BufferSizeInBytes : DWORD -> "dword"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。

const std = @import("std");

extern "winhvplatform" fn WHvSetVirtualProcessorState(
    Partition: isize, // WHV_PARTITION_HANDLE
    VpIndex: u32, // DWORD
    StateType: i32, // WHV_VIRTUAL_PROCESSOR_STATE_TYPE
    Buffer: ?*anyopaque, // void*
    BufferSizeInBytes: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc WHvSetVirtualProcessorState(
    Partition: int,  # WHV_PARTITION_HANDLE
    VpIndex: uint32,  # DWORD
    StateType: int32,  # WHV_VIRTUAL_PROCESSOR_STATE_TYPE
    Buffer: pointer,  # void*
    BufferSizeInBytes: uint32  # DWORD
): int32 {.importc: "WHvSetVirtualProcessorState", stdcall, dynlib: "WinHvPlatform.dll".}

pragma(lib, "winhvplatform");
extern(Windows)
int WHvSetVirtualProcessorState(
    ptrdiff_t Partition,   // WHV_PARTITION_HANDLE
    uint VpIndex,   // DWORD
    int StateType,   // WHV_VIRTUAL_PROCESSOR_STATE_TYPE
    void* Buffer,   // void*
    uint BufferSizeInBytes   // DWORD
);

ccall((:WHvSetVirtualProcessorState, "WinHvPlatform.dll"), stdcall, Int32,
      (Int, UInt32, Int32, Ptr{Cvoid}, UInt32),
      Partition, VpIndex, StateType, Buffer, BufferSizeInBytes)
# Partition : WHV_PARTITION_HANDLE -> Int
# VpIndex : DWORD -> UInt32
# StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> Int32
# Buffer : void* -> Ptr{Cvoid}
# BufferSizeInBytes : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WHvSetVirtualProcessorState(
    intptr_t Partition,
    uint32_t VpIndex,
    int32_t StateType,
    void* Buffer,
    uint32_t BufferSizeInBytes);
]]
local winhvplatform = ffi.load("winhvplatform")
-- winhvplatform.WHvSetVirtualProcessorState(Partition, VpIndex, StateType, Buffer, BufferSizeInBytes)
-- Partition : WHV_PARTITION_HANDLE
-- VpIndex : DWORD
-- StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE
-- Buffer : void*
-- BufferSizeInBytes : DWORD
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('WinHvPlatform.dll');
const WHvSetVirtualProcessorState = lib.func('__stdcall', 'WHvSetVirtualProcessorState', 'int32_t', ['intptr_t', 'uint32_t', 'int32_t', 'void *', 'uint32_t']);
// WHvSetVirtualProcessorState(Partition, VpIndex, StateType, Buffer, BufferSizeInBytes)
// Partition : WHV_PARTITION_HANDLE -> 'intptr_t'
// VpIndex : DWORD -> 'uint32_t'
// StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> 'int32_t'
// Buffer : void* -> 'void *'
// BufferSizeInBytes : DWORD -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("WinHvPlatform.dll", {
  WHvSetVirtualProcessorState: { parameters: ["isize", "u32", "i32", "pointer", "u32"], result: "i32" },
});
// lib.symbols.WHvSetVirtualProcessorState(Partition, VpIndex, StateType, Buffer, BufferSizeInBytes)
// Partition : WHV_PARTITION_HANDLE -> "isize"
// VpIndex : DWORD -> "u32"
// StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> "i32"
// Buffer : void* -> "pointer"
// BufferSizeInBytes : DWORD -> "u32"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t WHvSetVirtualProcessorState(
    intptr_t Partition,
    uint32_t VpIndex,
    int32_t StateType,
    void* Buffer,
    uint32_t BufferSizeInBytes);
C, "WinHvPlatform.dll");
// $ffi->WHvSetVirtualProcessorState(Partition, VpIndex, StateType, Buffer, BufferSizeInBytes);
// Partition : WHV_PARTITION_HANDLE
// VpIndex : DWORD
// StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE
// Buffer : void*
// BufferSizeInBytes : DWORD
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Winhvplatform extends StdCallLibrary {
    Winhvplatform INSTANCE = Native.load("winhvplatform", Winhvplatform.class);
    int WHvSetVirtualProcessorState(
        long Partition,   // WHV_PARTITION_HANDLE
        int VpIndex,   // DWORD
        int StateType,   // WHV_VIRTUAL_PROCESSOR_STATE_TYPE
        Pointer Buffer,   // void*
        int BufferSizeInBytes   // DWORD
    );
}

@[Link("winhvplatform")]
lib LibWinHvPlatform
  fun WHvSetVirtualProcessorState = WHvSetVirtualProcessorState(
    Partition : LibC::SSizeT,   # WHV_PARTITION_HANDLE
    VpIndex : UInt32,   # DWORD
    StateType : Int32,   # WHV_VIRTUAL_PROCESSOR_STATE_TYPE
    Buffer : Void*,   # void*
    BufferSizeInBytes : UInt32   # DWORD
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef WHvSetVirtualProcessorStateNative = Int32 Function(IntPtr, Uint32, Int32, Pointer<Void>, Uint32);
typedef WHvSetVirtualProcessorStateDart = int Function(int, int, int, Pointer<Void>, int);
final WHvSetVirtualProcessorState = DynamicLibrary.open('WinHvPlatform.dll')
    .lookupFunction<WHvSetVirtualProcessorStateNative, WHvSetVirtualProcessorStateDart>('WHvSetVirtualProcessorState');
// Partition : WHV_PARTITION_HANDLE -> IntPtr
// VpIndex : DWORD -> Uint32
// StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> Int32
// Buffer : void* -> Pointer<Void>
// BufferSizeInBytes : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WHvSetVirtualProcessorState(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  VpIndex: DWORD;   // DWORD
  StateType: Integer;   // WHV_VIRTUAL_PROCESSOR_STATE_TYPE
  Buffer: Pointer;   // void*
  BufferSizeInBytes: DWORD   // DWORD
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvSetVirtualProcessorState';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "WHvSetVirtualProcessorState"
  c_WHvSetVirtualProcessorState :: CIntPtr -> Word32 -> Int32 -> Ptr () -> Word32 -> IO Int32
-- Partition : WHV_PARTITION_HANDLE -> CIntPtr
-- VpIndex : DWORD -> Word32
-- StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> Int32
-- Buffer : void* -> Ptr ()
-- BufferSizeInBytes : DWORD -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let whvsetvirtualprocessorstate =
  foreign "WHvSetVirtualProcessorState"
    (intptr_t @-> uint32_t @-> int32_t @-> (ptr void) @-> uint32_t @-> returning int32_t)
(* Partition : WHV_PARTITION_HANDLE -> intptr_t *)
(* VpIndex : DWORD -> uint32_t *)
(* StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> int32_t *)
(* Buffer : void* -> (ptr void) *)
(* BufferSizeInBytes : DWORD -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library winhvplatform (t "WinHvPlatform.dll"))
(cffi:use-foreign-library winhvplatform)

(cffi:defcfun ("WHvSetVirtualProcessorState" whv-set-virtual-processor-state :convention :stdcall) :int32
  (partition :int64)   ; WHV_PARTITION_HANDLE
  (vp-index :uint32)   ; DWORD
  (state-type :int32)   ; WHV_VIRTUAL_PROCESSOR_STATE_TYPE
  (buffer :pointer)   ; void*
  (buffer-size-in-bytes :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WHvSetVirtualProcessorState = Win32::API::More->new('WinHvPlatform',
    'int WHvSetVirtualProcessorState(LPARAM Partition, DWORD VpIndex, int StateType, LPVOID Buffer, DWORD BufferSizeInBytes)');
# my $ret = $WHvSetVirtualProcessorState->Call($Partition, $VpIndex, $StateType, $Buffer, $BufferSizeInBytes);
# Partition : WHV_PARTITION_HANDLE -> LPARAM
# VpIndex : DWORD -> DWORD
# StateType : WHV_VIRTUAL_PROCESSOR_STATE_TYPE -> int
# Buffer : void* -> LPVOID
# BufferSizeInBytes : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。